Henry howard



@uitrit tsts @sind @Hirn APPARATUS ron HEATING WATER AND GBNERATINe-STEAM.

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TO ALL WHO-M IT MAY CON CERN: l

Be it known that I, HENRY HOWARD, of Springfield, Hampden county, and Commonu'fealth of'Massachusotts, have invented a new anduseful improvement in Generators for Heating Water or Generating Steam; and I do hereby declare that the following is a f ull and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon. In these drawingsi Figure 1 represents a side view of my arrangement, and Figure 2 is a. detailed view of one of the parts. -jMy invention consists in a peculiar form of generator for the purpose of` raising water to the proper temperature for heating purposes. i

' In constructionI arrange a number of pipes or tubes of peculiar form in a manner which I will new describe. l The-pipes are placed in such positions'that a. large amount of heating surface is exposed to `the action ci' the iirc, they forming a grate and lfire-box and iues, so that the iire and heated air pass over and around them,

heating them thoroughly. The arrangement for fire-box, fines, &c., is fully shown in thefdrawings, the tubes x a: y p

forming the sides, one of which is shown, and the tubes e, shown in dotted lines, forming the grate or bottoml of the iire-box. The iues are formed by the tubes 1, 2, 3, 4, bc.,`in connection with the brick-work, it being immaterial whether they are surrounded by this brick-work entirely or placed closely enough together'to form th sides A themselves. These tubes are themselves constructed in two parts, and B, united at one end, C, and Aentering the reservoir of water D at the other end E. One of these parts A of the tubular generator ismuch longer than the other, B, and the mouth of the generator being divided, so as Vto form an entrance and exit from the reservoir, a constant circulation is kept up by the unequal expansion of the water in the tubes A and B, caused'by the inequality of the surface exposed to the heat of the re. In order-that the current may be more perfect, I

extend the mouth of one of these pipes further into the reservoir D than the other, thus separating the entrance and cx'it of the `water through itslcourse as much as possible. l This is shown in iig. 2 at K. u

In this manner I form a generator which hasnct only the advantage of a large amount of exposed heating, surface, but also a` complete circulation of the water being heated, so that the temperature is raised much more quickly and evenly than would be the case Where the water is still.

.These tubes may be, if desired, formed by a longitudinal partition throughs. single cylinder, as shown in p fig. 2, and the number and length of these tubes may be indefinitely increased, as may be convenient.` "As these are formed of continuous piping, with only one joint where they enter the reservoir, there is n'o dangerof leakage or disconnection from the unequal expansion and contraction of the pipes', as is frequently caused by the action of heat on them.

Now, having described my invention, what I claim as new, and desire to secure by Letters Patent, yis

-1. Au apparatus for heating water or generating steam, consisting of one or more double tubes A and B, constructed as described, and combined with a water-reservoir, substantially asl and for, the purpose set forth.

2. Arranging these tubes in such a manner as to form a grate andv fire-box and iues for the passage of the` haines and-heated air. l

HENRY HoWA an.

Witnesses: Y

EDWARD H. HYDE, J, B. GARDINER. 

